how man digits are in a network mac address quizlet

For example, an Ethernet card may have a MAC address of 00:0d:83:b1:c0:8e. The address format uses a 48-bit identifier, formatted as six hexadecimal numbers separated by colons, that provides more than 281 trillion potential addresses. Since a MAC address uniquely identifies a particular network adapter, there must be enough unique addresses for every device that needs one.

A network administrator can configure a network to reject connections from specific MAC addresses or restrict network access to a set of approved MAC addresses. Routers and other network infrastructure equipment use both IP and MAC addresses to track which devices connect to a network an IP address represents the software connection, while a MAC address represents the hardware connection. Every network interface card, such as an Ethernet card or a Wi-Fi adapter, has a permanent MAC address assigned by its manufacturer some operating systems allow an adapter's MAC address to be temporarily changed, or 'spoofed,' in software. Stands for ' Media Access Control Address.'Ī MAC address is a hardware identification number that uniquely identifies each device on a network.

How man digits are in a network mac address quizlet